200 Top SEO Ranking Factors May 2026

TOP SEO Factors for 2026-05 previous

Top SEO Factor data is updated daily for latest "month to date" measurements.

	Name	Correlation	#1 Max	Page 1 Avg	Usage %	Searches %
1	Number of Unique LSI Words Used Diversity	-0.23	951	302	83 %	80 %
2	Search Result Domain is .com, .net, or .org Other	-0.23	1	1	6 %	84 %
3	Load Time Milliseconds Performance	-0.22	29874	1351	82 %	93 %
4	Search Result Domain is .com Other	-0.22	1	1	6 %	84 %
5	Number of Top 100 Shared Factors Used Diversity	-0.22	38	28	97 %	96 %
6	Number of Top 200 Shared Factors Used Diversity	-0.21	51	37	97 %	95 %
7	Number of Top 50 Shared Factors Used Diversity	-0.21	16	12	96 %	94 %
8	Number of Distinct Entities Used Diversity	-0.2	61	29	78 %	96 %
9	Variations in H1, H2, and H3 Tags Relevancy	-0.2	378	10	57 %	90 %
10	Number of Unique Variations Used Diversity	-0.2	19	7	75 %	92 %
11	Variations in H1-H6 Tags Relevancy	-0.2	409	11	58 %	91 %
12	Entities in Sentences Relevancy	-0.2	1308	144	66 %	95 %
13	Variations in H1 and H2 Tags Relevancy	-0.2	287	6	55 %	93 %
14	Entities in the HTML Tag Relevancy	-0.2	1436	147	72 %	96 %
15	Variations in Div Tags Relevancy	-0.19	68329	702	69 %	91 %
16	Entities in Title Tag Relevancy	-0.19	7	3	65 %	94 %
17	Variations in P Tags Relevancy	-0.19	4557	84	60 %	93 %
18	Entities in H2 Tags	-0.19	46	7	50 %	96 %
19	Variations in Search Result Document File Name Relevancy	-0.19	8	1	41 %	85 %
20	Variations in Body Tags Relevancy	-0.19	93621	771	74 %	90 %
21	Entities in H1 Tags	-0.19	5	2	51 %	90 %
22	Variations in HTML Tags Relevancy	-0.19	93621	767	74 %	91 %
23	Number of Backlinks Authority	-0.19	382197	13104	49 %	76 %
24	Number of Referring Domains Authority	-0.19	3169	200	49 %	76 %
25	Number of Factors Used Diversity	-0.18	271	170	97 %	90 %
26	Entities in H3 Tags	-0.18	40	7	42 %	94 %
27	Variations in LI Tags Relevancy	-0.18	2914	58	57 %	87 %
28	Variations in Search Result URL Path Relevancy	-0.18	10	2	43 %	85 %
29	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.18	32	2	38 %	86 %
30	Word Count Size	-0.18	4408	1429	83 %	91 %
31	Number of Heading Tags Size	-0.18	49	21	68 %	89 %
32	Variations in H1 Tags Relevancy	-0.18	20	1	48 %	86 %
33	Unabridged Word Count Size	-0.18	10152	1891	83 %	92 %
34	Variations in H2 Tags Relevancy	-0.18	280	5	42 %	91 %
35	Leading Variations in H1-H6 Tags Relevancy	-0.18	36	2	40 %	87 %
36	Variations in Sentences Relevancy	-0.18	8372	115	68 %	92 %
37	Clean Text Kilobytes Size	-0.17	56	13	69 %	90 %
38	Number of Do Follow Backlinks Authority	-0.17	377721	11290	45 %	77 %
39	Variations in A Tags Relevancy	-0.17	9305	96	58 %	87 %
40	LSI Words in Sentences Relevancy	-0.17	2378	718	60 %	96 %
41	Term Frequency Relevancy	-0.17	6	3	74 %	92 %
42	Number of No Follow Backlinks Authority	-0.17	61104	2232	37 %	71 %
43	Number of H2 Tags Size	-0.17	23	7	61 %	90 %
44	Number of P Tags Size	-0.17	123	38	68 %	90 %
45	Number of HTML Tags Size	-0.17	2805	1040	82 %	89 %
46	Variations in A Tag HREF Attributes Relevancy	-0.17	2876	64	53 %	89 %
47	Variations in Search Result Display URL Relevancy	-0.17	19	2	75 %	79 %
48	Variations in Search Result Link Text Relevancy	-0.17	19	2	75 %	79 %
49	Variation Count in Top 30KB Relevancy	-0.17	4928	59	61 %	90 %
50	Number of Links Authority	-0.17	624	137	75 %	88 %
51	Number of HTTPS Links Authority	-0.17	623	136	74 %	88 %
52	Number of Internal Links Authority	-0.17	619	123	73 %	87 %
53	Variations in Distinct A Tag HREF Attributes Relevancy	-0.17	1808	41	53 %	89 %
54	Number of DoFollow Links Authority	-0.17	614	134	75 %	88 %
55	Variations in the Title Tag Relevancy	-0.17	23	2	61 %	85 %
56	Number of Images Size	-0.17	309	30	69 %	92 %
57	Has Entities in H1 Tags Relevancy	-0.17	1	1	52 %	87 %
58	Number of H1 Tags Size	-0.16	3	1	65 %	91 %
59	Has Entities in H2 Tags Relevancy	-0.16	1	1	51 %	90 %
60	Variations in Search Result URL Relevancy	-0.16	21	2	53 %	79 %
61	Variations in Span Tags Relevancy	-0.16	1077	20	45 %	87 %
62	LSI Words in H2 Tags Relevancy	-0.16	91	20	51 %	95 %
63	Number of Images with ALT Text Size	-0.16	304	21	63 %	89 %
64	Variations in First 100 Words Relevancy	-0.16	177	7	60 %	86 %
65	Variations in the Canonical URL Relevancy	-0.16	50	2	45 %	84 %
66	Variations in Absolute URLs Relevancy	-0.16	14393	195	56 %	89 %
67	Search Result Number of Dirs in Path Other	-0.16	3	2	72 %	79 %
68	Variations in Main Tags Relevancy	-0.16	40166	393	36 %	87 %
69	Number of H3 Tags Size	-0.16	26	9	54 %	83 %
70	Clean Keyword Density in the HTML Tag Relevancy	-0.16	203	8	65 %	78 %
71	Variation Density in Top 30KB Relevancy	-0.16	310	9	57 %	82 %
72	LSI Words in H1 Tags Relevancy	-0.16	10	4	51 %	94 %
73	Average Words Per Sentence Size	-0.16	172	29	72 %	85 %
74	Entities in Meta Description Tag Relevancy	-0.15	19	3	57 %	91 %
75	Number of External Links Authority	-0.15	41	15	71 %	88 %
76	Number of DoFollow External Links Authority	-0.15	40	14	70 %	87 %
77	Variations in Script Tags Relevancy	-0.15	52712	466	61 %	87 %
78	Variations in H3 Tags Relevancy	-0.15	123	4	32 %	86 %
79	Exact Matches in the HTML Tag Relevancy	-0.15	242	11	30 %	88 %
80	Number of Images without ALT Text Size	-0.15	32	10	52 %	87 %
81	Number of HTML Comments Size	-0.15	521	47	65 %	87 %
82	Variations in OpenGraph Title Relevancy	-0.15	16	2	53 %	84 %
83	Variations in Meta Description Relevancy	-0.15	49	2	51 %	85 %
84	Leading Variations in H1 Tags Relevancy	-0.15	2	1	24 %	81 %
85	TF/IDF Relevancy	-0.15	2	1	55 %	89 %
86	LSI Words in Title Tag Relevancy	-0.15	15	5	64 %	91 %
87	Number of Facebook Pages Authority	-0.15	4	2	51 %	81 %
88	Variations in ALT Attributes Relevancy	-0.15	588	9	39 %	87 %
89	Variations in OpenGraph Description Relevancy	-0.15	45	2	46 %	81 %
90	Has Entities in H3 Tags Relevancy	-0.15	1	1	43 %	87 %
91	Number of Includes Technology	-0.15	68	26	77 %	79 %
92	Number of US Phone Numbers Trust	-0.15	249	10	35 %	82 %
93	Variations in Section Tags Relevancy	-0.15	1250	31	34 %	91 %
94	Number Of JSON-LD Types Relevancy	-0.15	63	13	52 %	86 %
95	Number of Sentences Size	-0.15	612	150	78 %	86 %
96	Variations in Nav Tags Relevancy	-0.15	7034	120	41 %	85 %
97	Exact Matches in H1-H6 Tags Relevancy	-0.15	8	1	19 %	85 %
98	Number of Questions In Headings Size	-0.14	7	2	33 %	84 %
99	Leading Variations in Title Tag Relevancy	-0.14	1	1	28 %	82 %
100	Title Tag Has Entities Relevancy	-0.14	1	1	66 %	87 %
101	Percentage of DoFollow Links Authority	-0.14	99	79	75 %	93 %
102	Leading Variations in H2 Tags Relevancy	-0.14	22	1	20 %	85 %
103	Has JSON-LD Schema Markup Relevancy	-0.14	1	1	50 %	81 %
104	Flesch Kincaid Reading Grade Level Other	-0.14	6	1	92 %	86 %
105	Number of Forms Technology	-0.14	10	2	45 %	82 %
106	Percentage of DoFollow External Links Authority	-0.14	25	12	69 %	82 %
107	Has Meta Charset Technology	-0.14	1	1	70 %	82 %
108	Percentage of DoFollow Internal Links Authority	-0.14	92	68	73 %	85 %
109	Is Home Page Other	-0.14	1	1	19 %	40 %
110	Has Privacy Policy Trust	-0.14	1	1	58 %	76 %
111	Inline CSS Kilobytes Size	-0.14	189	61	63 %	85 %
112	LSI Words in H3 Tags Relevancy	-0.14	97	22	44 %	90 %
113	Search Result Domain Length Size	-0.14	23	16	81 %	79 %
114	Search Result Host Length Size	-0.14	23	16	81 %	79 %
115	Has US Phone Number Trust	-0.14	1	1	37 %	75 %
116	Variations making whole H1-H6 Tags Relevancy	-0.14	3	1	13 %	76 %
117	Title Word Count Size	-0.14	28	8	79 %	74 %
118	Number of JavaScript Includes Technology	-0.14	46	18	77 %	79 %
119	Number of CSS Includes Technology	-0.14	22	9	70 %	78 %
120	Number of LinkedIn Pages Authority	-0.14	8	1	30 %	79 %
121	Variations making whole H1, H2, and H3 Tags Relevancy	-0.14	3	1	12 %	76 %
122	Title Length Size	-0.14	100	51	79 %	75 %
123	Has Form Technology	-0.14	1	1	45 %	78 %
124	LSI Words in Meta Description Tag Relevancy	-0.14	23	10	53 %	92 %
125	Exact Matches in Sentences Relevancy	-0.14	37	4	22 %	88 %
126	Entities in H4 Tags	-0.14	21	2	19 %	87 %
127	Variations in Footer Tags Relevancy	-0.13	6817	53	32 %	83 %
128	Headings Has Question Other	-0.13	1	1	34 %	78 %
129	Uses JSON-LD name Other	-0.13	1	1	50 %	79 %
130	Variations making whole A Tags Relevancy	-0.13	115	2	24 %	79 %
131	Number of Instagram Pages Authority	-0.13	23	2	39 %	76 %
132	Variations in Strong Tags Relevancy	-0.13	289	4	23 %	79 %
133	Search Result Uses HTTPS Other	-0.13	1	1	82 %	87 %
134	Has Meta Viewport Technology	-0.13	1	1	79 %	80 %
135	Number of Absolute URLs Authority	-0.13	861	275	82 %	84 %
136	Number of Social Accounts Authority	-0.13	8	2	36 %	83 %
137	Number of H4 Tags Size	-0.13	23	4	31 %	81 %
138	Number of Social Pages Authority	-0.13	25	4	59 %	80 %
139	Has Canonical URL Authority	-0.13	1	1	68 %	79 %
140	Exact Matches in Title Tag Relevancy	-0.13	1	1	17 %	82 %
141	Number of Questions Size	-0.13	63	13	63 %	80 %
142	Number of Prices Size	-0.13	565	107	65 %	82 %
143	Meta Description Length Size	-0.13	456	119	64 %	78 %
144	Has OpenGraph Image Relevancy	-0.13	1	1	53 %	68 %
145	Number of Questions In H3 Tags Size	-0.13	4	1	17 %	79 %
146	Variations Making Whole Span Tags Relevancy	-0.13	4	1	17 %	85 %
147	Page Size Kilobytes Size	-0.13	748	349	81 %	76 %
148	Word Count in Meta Description Size	-0.13	65	19	64 %	80 %
149	Number of Questions In H2 Tags Size	-0.13	3	1	22 %	80 %
150	Exact Matches in Top 30KB Relevancy	-0.13	14	2	17 %	85 %
151	Leading Variations in H3 Tags Relevancy	-0.13	9	1	14 %	75 %
152	Variations Making Whole LI Tags Relevancy	-0.13	5	1	19 %	80 %
153	Number of Facebook Accounts Authority	-0.13	2	1	23 %	79 %
154	Has Terms of Service Trust	-0.12	1	1	42 %	74 %
155	Variations in Button Tags Relevancy	-0.12	5433	48	12 %	86 %
156	Uses JSON-LD url Other	-0.12	1	1	45 %	78 %
157	Meta Description Tag Has Entities Relevancy	-0.12	1	1	57 %	82 %
158	Uses JSON-LD Organization Other	-0.12	1	1	29 %	74 %
159	Number Of Claimed Brands Other	-0.12	60	2	23 %	82 %
160	Search Result URL Length Size	-0.12	93	62	95 %	58 %
161	Variations in ID Attributes Relevancy	-0.12	1696	18	16 %	83 %
162	Uses Schema product Other	-0.12	1	1	9 %	44 %
163	Has Google Verify Technology	-0.12	1	1	18 %	71 %
164	Has Meta Description Relevancy	-0.12	1	1	63 %	76 %
165	Variations in the last 100 words Relevancy	-0.12	176	5	43 %	76 %
166	Number of Twitter Accounts Authority	-0.12	5	1	20 %	74 %
167	Inline JavaScript Kilobytes Size	-0.12	534	147	76 %	66 %
168	Has Meta Robots Other	-0.12	1	1	24 %	71 %
169	Variations in I Tags Relevancy	-0.12	568	8	17 %	75 %
170	Exact Matches in H2 Tags Relevancy	-0.12	5	1	11 %	86 %
171	Uses JSON-LD ListItem Other	-0.12	1	1	30 %	75 %
172	Search Result Summary Length Size	-0.12	161	152	97 %	65 %
173	Has Schema Markup Relevancy	-0.12	1	1	61 %	72 %
174	Uses JSON-LD description Other	-0.12	1	1	38 %	75 %
175	Uses Schema organization Other	-0.12	1	1	31 %	75 %
176	Uses JSON-LD sku Other	-0.12	1	1	6 %	23 %
177	Number of H5 Tags Size	-0.12	6	2	15 %	77 %
178	Uses JSON-LD BreadcrumbList Other	-0.12	1	1	30 %	76 %
179	Variations in H4-H6 Tags Relevancy	-0.12	40	2	15 %	76 %
180	Exact Matches in H1 Tags Relevancy	-0.12	1	1	14 %	79 %
181	Variations in TITLE Attributes Relevancy	-0.12	1571	13	32 %	77 %
182	Has Meta Twitter Card Authority	-0.12	1	1	51 %	64 %
183	Uses Schema sku Other	-0.12	1	1	6 %	23 %
184	Uses JSON-LD logo Other	-0.12	1	1	11 %	63 %
185	Has FavIcon Technology	-0.12	1	1	73 %	76 %
186	Variations in Class Attributes Relevancy	-0.12	12974	206	18 %	83 %
187	Uses Schema brand Other	-0.12	1	1	5 %	43 %
188	Number of Nofollow Links Authority	-0.12	18	4	21 %	79 %
189	Has Contact Page Trust	-0.12	1	1	58 %	73 %
190	Variations in Meta Twitter Description Relevancy	-0.12	37	2	26 %	79 %
191	Uses JSON-LD Product Other	-0.12	1	1	8 %	45 %
192	Uses Schema logo Other	-0.12	1	1	12 %	63 %
193	Uses Schema addresslocality Other	-0.12	1	1	16 %	60 %
194	Variations in Article Tags Relevancy	-0.12	3771	39	21 %	74 %
195	Uses JSON-LD GeoCoordinates Other	-0.11	1	1	11 %	41 %
196	Uses JSON-LD streetAddress Other	-0.11	1	1	15 %	61 %
197	Uses Schema geocoordinates Other	-0.11	1	1	12 %	41 %
198	Has OpenGraph Type Relevancy	-0.11	1	1	59 %	77 %
199	Variations in Meta Twitter Content Relevancy	-0.11	12	1	28 %	73 %
200	Has Entities in H4 Tags Relevancy	-0.11	1	1	19 %	79 %

Measures 150553 SEO Factors

148831 Built-In SEO Factors

139629 On-page SEO Factors

9202 Google Maps SEO Factors for Local SEO

1722 SEO Factors from APIs

147 API SEO Factors for off-page SEO like backlinks and referring domains.

1575 Technology Stack SEO Factors

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TOP SEO Factors for 2026-05 previous