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	294	82 %	81 %
2	Load Time Milliseconds Performance	-0.22	29874	1359	82 %	94 %
3	Search Result Domain is .com, .net, or .org Other	-0.22	1	1	6 %	82 %
4	Search Result Domain is .com Other	-0.21	1	1	6 %	82 %
5	Number of Top 100 Shared Factors Used Diversity	-0.21	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	Variations in H1, H2, and H3 Tags Relevancy	-0.2	378	9	58 %	90 %
9	Number of Unique Variations Used Diversity	-0.2	19	7	76 %	92 %
10	Number of Distinct Entities Used Diversity	-0.2	61	28	77 %	96 %
11	Variations in H1-H6 Tags Relevancy	-0.2	409	10	58 %	91 %
12	Variations in H1 and H2 Tags Relevancy	-0.19	287	5	56 %	92 %
13	Entities in Title Tag Relevancy	-0.19	7	3	63 %	94 %
14	Entities in Sentences Relevancy	-0.19	1308	137	66 %	95 %
15	Entities in the HTML Tag Relevancy	-0.19	1436	140	71 %	95 %
16	Variations in P Tags Relevancy	-0.19	4557	77	60 %	92 %
17	Variations in Div Tags Relevancy	-0.19	68329	609	69 %	92 %
18	Variations in Search Result Document File Name Relevancy	-0.19	8	1	41 %	84 %
19	Entities in H2 Tags	-0.19	46	7	49 %	97 %
20	Variations in Body Tags Relevancy	-0.19	93621	690	75 %	91 %
21	Variations in HTML Tags Relevancy	-0.18	93621	685	74 %	92 %
22	Entities in H1 Tags	-0.18	5	2	49 %	92 %
23	Number of Factors Used Diversity	-0.18	271	171	97 %	90 %
24	Number of Backlinks Authority	-0.18	382197	11787	49 %	77 %
25	Variations in LI Tags Relevancy	-0.18	2914	52	58 %	88 %
26	Variations in Search Result URL Path Relevancy	-0.18	10	2	43 %	84 %
27	Number of Referring Domains Authority	-0.18	3169	187	49 %	77 %
28	Variations in H1 Tags Relevancy	-0.18	20	1	49 %	86 %
29	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.18	32	2	39 %	85 %
30	Word Count Size	-0.18	4408	1429	83 %	91 %
31	Unabridged Word Count Size	-0.18	10152	1872	83 %	91 %
32	Variations in H2 Tags Relevancy	-0.18	280	5	42 %	90 %
33	Number of Heading Tags Size	-0.18	49	21	69 %	89 %
34	Entities in H3 Tags	-0.18	40	7	41 %	94 %
35	LSI Words in Sentences Relevancy	-0.17	2378	721	62 %	95 %
36	Leading Variations in H1-H6 Tags Relevancy	-0.17	36	2	40 %	86 %
37	Clean Text Kilobytes Size	-0.17	56	13	70 %	90 %
38	Number of Do Follow Backlinks Authority	-0.17	377721	10227	45 %	76 %
39	Variations in Sentences Relevancy	-0.17	8372	103	68 %	92 %
40	Variations in Search Result Display URL Relevancy	-0.17	19	2	76 %	81 %
41	Variations in Search Result Link Text Relevancy	-0.17	19	2	76 %	81 %
42	Number of H2 Tags Size	-0.17	23	7	62 %	89 %
43	Variations in A Tags Relevancy	-0.17	9305	84	59 %	88 %
44	Number of No Follow Backlinks Authority	-0.17	61104	1978	36 %	70 %
45	Term Frequency Relevancy	-0.17	6	3	74 %	92 %
46	Variations in the Title Tag Relevancy	-0.17	23	2	62 %	85 %
47	Number of P Tags Size	-0.17	123	38	69 %	89 %
48	Number of HTML Tags Size	-0.17	2805	1024	82 %	89 %
49	Number of Images Size	-0.17	309	29	69 %	91 %
50	Variation Count in Top 30KB Relevancy	-0.17	4928	53	61 %	90 %
51	Variations in A Tag HREF Attributes Relevancy	-0.17	2876	59	53 %	89 %
52	Variations in Distinct A Tag HREF Attributes Relevancy	-0.16	1808	38	53 %	89 %
53	LSI Words in H2 Tags Relevancy	-0.16	91	21	52 %	94 %
54	Number of H1 Tags Size	-0.16	3	1	65 %	91 %
55	Variations in Search Result URL Relevancy	-0.16	21	2	52 %	80 %
56	Variations in Span Tags Relevancy	-0.16	1077	18	45 %	88 %
57	Number of Internal Links Authority	-0.16	619	122	74 %	87 %
58	Number of HTTPS Links Authority	-0.16	623	134	75 %	88 %
59	Number of DoFollow Links Authority	-0.16	614	132	75 %	88 %
60	Number of Links Authority	-0.16	624	135	75 %	88 %
61	Variations in First 100 Words Relevancy	-0.16	177	7	60 %	86 %
62	Has Entities in H1 Tags Relevancy	-0.16	1	1	51 %	89 %
63	Variations in Absolute URLs Relevancy	-0.16	14393	172	56 %	90 %
64	Number of Images with ALT Text Size	-0.16	304	20	63 %	88 %
65	Variations in the Canonical URL Relevancy	-0.16	50	2	45 %	84 %
66	Search Result Number of Dirs in Path Other	-0.16	3	2	73 %	79 %
67	Variations in Main Tags Relevancy	-0.16	40166	340	36 %	87 %
68	Has Entities in H2 Tags Relevancy	-0.16	1	1	50 %	90 %
69	Clean Keyword Density in the HTML Tag Relevancy	-0.16	203	7	66 %	78 %
70	LSI Words in H1 Tags Relevancy	-0.16	10	4	53 %	94 %
71	Variation Density in Top 30KB Relevancy	-0.16	310	8	58 %	82 %
72	Entities in Meta Description Tag Relevancy	-0.16	19	3	56 %	91 %
73	LSI Words in Title Tag Relevancy	-0.15	15	6	65 %	90 %
74	Number of H3 Tags Size	-0.15	26	9	55 %	84 %
75	Variations in Meta Description Relevancy	-0.15	49	2	52 %	84 %
76	Variations in Script Tags Relevancy	-0.15	52712	409	61 %	87 %
77	Variations in OpenGraph Title Relevancy	-0.15	16	1	53 %	83 %
78	Exact Matches in the HTML Tag Relevancy	-0.15	242	12	30 %	88 %
79	Variations in H3 Tags Relevancy	-0.15	123	4	32 %	86 %
80	Number of Images without ALT Text Size	-0.15	34	9	52 %	86 %
81	Number of Facebook Pages Authority	-0.15	4	2	52 %	81 %
82	Number of Includes Technology	-0.15	68	26	78 %	79 %
83	Number of External Links Authority	-0.15	41	15	71 %	87 %
84	Leading Variations in H1 Tags Relevancy	-0.15	2	1	24 %	81 %
85	Number of DoFollow External Links Authority	-0.15	40	13	70 %	86 %
86	Average Words Per Sentence Size	-0.15	172	29	73 %	85 %
87	Variations in ALT Attributes Relevancy	-0.15	588	9	39 %	88 %
88	TF/IDF Relevancy	-0.15	2	1	55 %	88 %
89	Variations in OpenGraph Description Relevancy	-0.15	45	2	47 %	81 %
90	Number of HTML Comments Size	-0.15	521	47	65 %	89 %
91	Number of Sentences Size	-0.15	612	149	79 %	86 %
92	Variations in Nav Tags Relevancy	-0.15	7034	105	41 %	87 %
93	Number Of JSON-LD Types Relevancy	-0.15	63	13	52 %	85 %
94	Exact Matches in H1-H6 Tags Relevancy	-0.14	8	1	19 %	85 %
95	Is Home Page Other	-0.14	1	1	18 %	40 %
96	Leading Variations in H2 Tags Relevancy	-0.14	22	1	20 %	84 %
97	Variations in Section Tags Relevancy	-0.14	1250	29	34 %	90 %
98	Leading Variations in Title Tag Relevancy	-0.14	1	1	28 %	81 %
99	Has JSON-LD Schema Markup Relevancy	-0.14	1	1	50 %	81 %
100	Title Tag Has Entities Relevancy	-0.14	1	1	65 %	87 %
101	Number of US Phone Numbers Trust	-0.14	249	10	35 %	81 %
102	Number of Questions In Headings Size	-0.14	7	2	34 %	84 %
103	Percentage of DoFollow Links Authority	-0.14	99	80	75 %	92 %
104	Has Entities in H3 Tags Relevancy	-0.14	1	1	42 %	88 %
105	Percentage of DoFollow Internal Links Authority	-0.14	92	68	74 %	85 %
106	Flesch Kincaid Reading Grade Level Other	-0.14	6	1	93 %	85 %
107	Number of Forms Technology	-0.14	10	2	45 %	81 %
108	LSI Words in Meta Description Tag Relevancy	-0.14	23	10	54 %	90 %
109	Percentage of DoFollow External Links Authority	-0.14	25	12	69 %	80 %
110	LSI Words in H3 Tags Relevancy	-0.14	97	22	45 %	90 %
111	Inline CSS Kilobytes Size	-0.14	189	61	63 %	85 %
112	Has Meta Charset Technology	-0.14	1	1	71 %	82 %
113	Number of CSS Includes Technology	-0.14	22	9	70 %	78 %
114	Has Privacy Policy Trust	-0.14	1	1	58 %	75 %
115	Has US Phone Number Trust	-0.14	1	1	37 %	75 %
116	Number of JavaScript Includes Technology	-0.14	46	18	78 %	79 %
117	Number of LinkedIn Pages Authority	-0.14	8	1	29 %	78 %
118	Title Word Count Size	-0.14	28	8	80 %	74 %
119	Variations in Footer Tags Relevancy	-0.14	6817	46	33 %	84 %
120	Search Result Domain Length Size	-0.14	23	16	82 %	79 %
121	Search Result Host Length Size	-0.14	23	16	82 %	79 %
122	Title Length Size	-0.14	100	51	80 %	75 %
123	Has Form Technology	-0.14	1	1	45 %	77 %
124	Variations making whole H1, H2, and H3 Tags Relevancy	-0.14	3	1	12 %	76 %
125	Variations in Strong Tags Relevancy	-0.13	289	4	23 %	81 %
126	Headings Has Question Other	-0.13	1	1	35 %	77 %
127	Variations making whole H1-H6 Tags Relevancy	-0.13	3	1	13 %	78 %
128	Entities in H4 Tags	-0.13	21	2	19 %	88 %
129	Number of Instagram Pages Authority	-0.13	23	2	39 %	74 %
130	Uses JSON-LD name Other	-0.13	1	1	50 %	79 %
131	Number of Absolute URLs Authority	-0.13	861	273	82 %	84 %
132	Exact Matches in Sentences Relevancy	-0.13	37	4	22 %	89 %
133	Number of H4 Tags Size	-0.13	23	4	32 %	82 %
134	Number of Social Pages Authority	-0.13	25	4	59 %	80 %
135	Has Meta Viewport Technology	-0.13	1	1	80 %	80 %
136	Number of Questions Size	-0.13	63	13	64 %	80 %
137	Has Canonical URL Authority	-0.13	1	1	69 %	77 %
138	Variations making whole A Tags Relevancy	-0.13	115	2	24 %	80 %
139	Search Result Uses HTTPS Other	-0.13	1	1	82 %	86 %
140	Number of Prices Size	-0.13	565	104	66 %	82 %
141	Number of Social Accounts Authority	-0.13	8	2	37 %	81 %
142	Number of Questions In H2 Tags Size	-0.13	3	1	22 %	79 %
143	Exact Matches in Top 30KB Relevancy	-0.13	14	2	17 %	85 %
144	Number of Facebook Accounts Authority	-0.13	2	1	24 %	77 %
145	Exact Matches in Title Tag Relevancy	-0.13	1	1	17 %	83 %
146	Variations Making Whole Span Tags Relevancy	-0.13	5	1	17 %	85 %
147	Meta Description Length Size	-0.13	456	118	65 %	78 %
148	Page Size Kilobytes Size	-0.13	748	343	81 %	76 %
149	Has OpenGraph Image Relevancy	-0.13	1	1	53 %	68 %
150	Number of Questions In H3 Tags Size	-0.13	4	1	17 %	79 %
151	Uses JSON-LD url Other	-0.12	1	1	45 %	78 %
152	Word Count in Meta Description Size	-0.12	65	19	64 %	79 %
153	Uses JSON-LD Organization Other	-0.12	1	1	29 %	73 %
154	Variations Making Whole LI Tags Relevancy	-0.12	7	1	19 %	80 %
155	Variations in Button Tags Relevancy	-0.12	5433	41	12 %	85 %
156	Uses JSON-LD description Other	-0.12	1	1	38 %	75 %
157	Leading Variations in H3 Tags Relevancy	-0.12	9	1	14 %	75 %
158	Uses Schema organization Other	-0.12	1	1	31 %	73 %
159	Search Result URL Length Size	-0.12	93	62	96 %	59 %
160	Has Schema Markup Relevancy	-0.12	1	1	61 %	71 %
161	Meta Description Tag Has Entities Relevancy	-0.12	1	1	56 %	83 %
162	Has Terms of Service Trust	-0.12	1	1	41 %	72 %
163	Uses JSON-LD sku Other	-0.12	1	1	5 %	24 %
164	Search Result Summary Length Size	-0.12	161	152	97 %	65 %
165	Uses Schema sku Other	-0.12	1	1	6 %	25 %
166	Variations in the last 100 words Relevancy	-0.12	176	5	44 %	78 %
167	Variations in H4-H6 Tags Relevancy	-0.12	40	2	15 %	77 %
168	Uses JSON-LD ListItem Other	-0.12	1	1	31 %	75 %
169	Variations in I Tags Relevancy	-0.12	568	7	18 %	76 %
170	Has Meta Twitter Card Authority	-0.12	1	1	52 %	64 %
171	Number Of Claimed Brands Other	-0.12	60	2	23 %	81 %
172	Number of Twitter Accounts Authority	-0.12	5	1	19 %	73 %
173	Inline JavaScript Kilobytes Size	-0.12	534	143	77 %	67 %
174	Exact Matches in H1 Tags Relevancy	-0.12	1	1	13 %	79 %
175	Has Meta Description Relevancy	-0.12	1	1	64 %	76 %
176	Uses JSON-LD BreadcrumbList Other	-0.12	1	1	30 %	75 %
177	Has Contact Page Trust	-0.12	1	1	59 %	74 %
178	Variations in Article Tags Relevancy	-0.12	3771	34	21 %	74 %
179	Has Meta Robots Other	-0.12	1	1	24 %	71 %
180	Variations in TITLE Attributes Relevancy	-0.12	1571	12	32 %	79 %
181	Has Google Verify Technology	-0.12	1	1	18 %	71 %
182	Variations in ID Attributes Relevancy	-0.12	1696	15	15 %	84 %
183	Is Article Page Other	-0.12	1	1	40 %	68 %
184	Number of H5 Tags Size	-0.12	6	2	15 %	78 %
185	Has FavIcon Technology	-0.12	1	1	74 %	75 %
186	Has OpenGraph Type Relevancy	-0.12	1	1	60 %	75 %
187	Uses Schema product Other	-0.12	1	1	9 %	45 %
188	Number of Nofollow Links Authority	-0.12	18	4	21 %	79 %
189	Uses Schema name Other	-0.11	1	1	57 %	72 %
190	Exact Matches in H2 Tags Relevancy	-0.11	5	1	11 %	87 %
191	Variations in Meta Twitter Content Relevancy	-0.11	12	1	28 %	72 %
192	Number of Email Addresses Trust	-0.11	15	4	39 %	81 %
193	Uses JSON-LD WebSite Other	-0.11	1	1	27 %	72 %
194	Has Apple Touch Icon Technology	-0.11	1	1	48 %	69 %
195	Uses JSON-LD streetAddress Other	-0.11	1	1	15 %	61 %
196	Uses Schema geocoordinates Other	-0.11	1	1	11 %	42 %
197	Uses JSON-LD GeoCoordinates Other	-0.11	1	1	11 %	43 %
198	Has Entities in H4 Tags Relevancy	-0.11	1	1	19 %	80 %
199	Uses Schema addresslocality Other	-0.11	1	1	16 %	61 %
200	Uses Schema brand Other	-0.11	1	1	5 %	45 %

Measures 150584 SEO Factors

148862 Built-In SEO Factors

139660 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