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	-0.24	951	299	83 %	81 %
2	Search Result Domain is .com, .net, or .org Other	-0.22	1	1	6 %	83 %
3	Search Result Domain is .com Other	-0.22	1	1	6 %	83 %
4	Number of Top 200 Shared Factors Used Diversity	-0.22	51	37	97 %	95 %
5	Load Time Milliseconds Performance	-0.21	29874	1320	81 %	93 %
6	Number of Top 100 Shared Factors Used Diversity	-0.21	38	28	96 %	96 %
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	11	57 %	90 %
9	Number of Distinct Entities Used Diversity	-0.2	59	29	77 %	96 %
10	Variations in H1-H6 Tags Relevancy	-0.2	409	12	58 %	91 %
11	Number of Unique Variations Used Diversity	-0.2	19	6	74 %	91 %
12	Entities in Title Tag Relevancy	-0.2	7	3	64 %	94 %
13	Variations in H1 and H2 Tags Relevancy	-0.19	287	6	55 %	93 %
14	Entities in Sentences Relevancy	-0.19	1308	144	65 %	95 %
15	Variations in Search Result Document File Name Relevancy	-0.19	8	1	42 %	84 %
16	Entities in the HTML Tag Relevancy	-0.19	1436	147	70 %	95 %
17	Variations in P Tags Relevancy	-0.19	4557	100	60 %	93 %
18	Number of Backlinks Authority	-0.19	382197	16427	50 %	73 %
19	Number of Referring Domains Authority	-0.19	3169	229	50 %	74 %
20	Variations in Div Tags Relevancy	-0.19	68329	874	69 %	91 %
21	Entities in H2 Tags	-0.19	46	7	49 %	96 %
22	Number of Factors Used Diversity	-0.18	271	170	96 %	90 %
23	Entities in H1 Tags	-0.18	5	2	50 %	89 %
24	Word Count Size	-0.18	4408	1420	82 %	90 %
25	Variations in Body Tags Relevancy	-0.18	93621	935	73 %	90 %
26	Unabridged Word Count Size	-0.18	10152	1874	82 %	90 %
27	Variations in HTML Tags Relevancy	-0.18	93621	927	73 %	91 %
28	Variations in Search Result URL Path Relevancy	-0.18	10	2	43 %	85 %
29	Entities in H3 Tags	-0.18	40	7	42 %	93 %
30	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.18	32	2	39 %	85 %
31	Variations in LI Tags Relevancy	-0.18	2914	69	57 %	88 %
32	Clean Text Kilobytes Size	-0.18	56	13	69 %	89 %
33	Number of Heading Tags Size	-0.18	45	21	68 %	89 %
34	LSI Words in Sentences Relevancy	-0.18	2378	722	61 %	95 %
35	Number of Do Follow Backlinks Authority	-0.18	377721	14048	45 %	74 %
36	Leading Variations in H1-H6 Tags Relevancy	-0.18	36	2	40 %	85 %
37	Variations in H1 Tags Relevancy	-0.18	20	1	48 %	87 %
38	Number of P Tags Size	-0.17	114	38	68 %	90 %
39	Number of H2 Tags Size	-0.17	23	7	61 %	90 %
40	Number of No Follow Backlinks Authority	-0.17	61104	2732	37 %	69 %
41	Term Frequency Relevancy	-0.17	6	3	73 %	91 %
42	Variations in H2 Tags Relevancy	-0.17	280	5	42 %	91 %
43	Number of HTML Tags Size	-0.17	2805	1035	81 %	88 %
44	Variations in A Tags Relevancy	-0.17	9305	119	58 %	87 %
45	Variations in Sentences Relevancy	-0.17	8372	138	67 %	92 %
46	Number of H1 Tags Size	-0.17	3	1	65 %	92 %
47	Number of Images Size	-0.17	309	31	68 %	91 %
48	Number of Links Authority	-0.17	624	138	74 %	89 %
49	Variations in A Tag HREF Attributes Relevancy	-0.17	2876	74	53 %	87 %
50	Variations in the Title Tag Relevancy	-0.17	23	2	61 %	85 %
51	Number of HTTPS Links Authority	-0.17	623	137	74 %	89 %
52	Number of DoFollow Links Authority	-0.17	614	134	74 %	89 %
53	Variations in Distinct A Tag HREF Attributes Relevancy	-0.17	1808	47	53 %	87 %
54	Variation Count in Top 30KB Relevancy	-0.17	4928	71	61 %	91 %
55	Number of Internal Links Authority	-0.17	619	124	73 %	87 %
56	Variations in Main Tags Relevancy	-0.17	40166	493	36 %	86 %
57	Has Entities in H1 Tags Relevancy	-0.17	1	1	52 %	87 %
58	Number of Images with ALT Text Size	-0.17	304	22	63 %	89 %
59	Variations in Search Result URL Relevancy	-0.16	21	2	53 %	78 %
60	Variations in the Canonical URL Relevancy	-0.16	50	2	45 %	84 %
61	Number of H3 Tags Size	-0.16	26	9	54 %	83 %
62	Variations in First 100 Words Relevancy	-0.16	177	8	60 %	85 %
63	Variations in Search Result Display URL Relevancy	-0.16	19	2	75 %	80 %
64	Variations in Search Result Link Text Relevancy	-0.16	19	2	75 %	80 %
65	Variations in Span Tags Relevancy	-0.16	1077	23	45 %	87 %
66	Search Result Number of Dirs in Path Other	-0.16	3	2	71 %	80 %
67	LSI Words in H2 Tags Relevancy	-0.16	91	21	51 %	95 %
68	Has Entities in H2 Tags Relevancy	-0.16	1	1	51 %	89 %
69	Average Words Per Sentence Size	-0.16	172	30	73 %	84 %
70	Number of External Links Authority	-0.16	41	16	71 %	88 %
71	Clean Keyword Density in the HTML Tag Relevancy	-0.16	203	9	65 %	77 %
72	Variations in Absolute URLs Relevancy	-0.16	14393	239	57 %	89 %
73	Variation Density in Top 30KB Relevancy	-0.16	310	11	58 %	79 %
74	Number of DoFollow External Links Authority	-0.16	40	14	70 %	87 %
75	Variations in H3 Tags Relevancy	-0.16	123	5	33 %	85 %
76	LSI Words in H1 Tags Relevancy	-0.16	10	4	52 %	94 %
77	LSI Words in Title Tag Relevancy	-0.16	15	5	64 %	91 %
78	Leading Variations in H1 Tags Relevancy	-0.16	2	1	25 %	80 %
79	Exact Matches in the HTML Tag Relevancy	-0.15	242	11	30 %	88 %
80	Number of HTML Comments Size	-0.15	441	47	65 %	87 %
81	Number of Images without ALT Text Size	-0.15	32	10	52 %	88 %
82	Percentage of DoFollow Links Authority	-0.15	99	79	74 %	91 %
83	Entities in Meta Description Tag Relevancy	-0.15	19	3	56 %	90 %
84	Number of Sentences Size	-0.15	612	151	78 %	85 %
85	Variations in OpenGraph Title Relevancy	-0.15	16	2	53 %	85 %
86	Variations in Section Tags Relevancy	-0.15	1250	36	35 %	91 %
87	TF/IDF Relevancy	-0.15	2	1	55 %	89 %
88	Variations in Script Tags Relevancy	-0.15	52712	577	61 %	87 %
89	Number Of JSON-LD Types Relevancy	-0.15	63	13	52 %	85 %
90	Variations in ALT Attributes Relevancy	-0.15	588	10	40 %	89 %
91	Number of US Phone Numbers Trust	-0.15	249	11	35 %	82 %
92	Variations in OpenGraph Description Relevancy	-0.15	45	2	46 %	79 %
93	Number of Facebook Pages Authority	-0.15	4	2	50 %	81 %
94	Has Entities in H3 Tags Relevancy	-0.15	1	1	43 %	86 %
95	Flesch Kincaid Reading Grade Level Other	-0.15	6	1	92 %	85 %
96	Leading Variations in Title Tag Relevancy	-0.15	1	1	28 %	82 %
97	Variations in Meta Description Relevancy	-0.15	49	2	51 %	84 %
98	Exact Matches in H1-H6 Tags Relevancy	-0.15	8	1	19 %	84 %
99	Leading Variations in H2 Tags Relevancy	-0.15	22	1	20 %	84 %
100	Percentage of DoFollow External Links Authority	-0.14	25	12	69 %	82 %
101	LSI Words in H3 Tags Relevancy	-0.14	97	22	44 %	89 %
102	Percentage of DoFollow Internal Links Authority	-0.14	92	68	72 %	85 %
103	Title Tag Has Entities Relevancy	-0.14	1	1	65 %	85 %
104	Number of Questions In Headings Size	-0.14	6	2	33 %	84 %
105	Number of Includes Technology	-0.14	68	26	77 %	77 %
106	Has Privacy Policy Trust	-0.14	1	1	58 %	76 %
107	Variations in Nav Tags Relevancy	-0.14	7034	147	42 %	85 %
108	Title Length Size	-0.14	100	51	79 %	76 %
109	Number of Forms Technology	-0.14	10	2	45 %	83 %
110	Title Word Count Size	-0.14	28	8	79 %	76 %
111	Has US Phone Number Trust	-0.14	1	1	36 %	73 %
112	Is Home Page Other	-0.14	1	1	18 %	38 %
113	Number of JavaScript Includes Technology	-0.14	46	18	76 %	76 %
114	Inline CSS Kilobytes Size	-0.14	189	60	62 %	83 %
115	Search Result Domain Length Size	-0.14	23	16	81 %	80 %
116	Search Result Host Length Size	-0.14	23	16	81 %	80 %
117	Has Meta Charset Technology	-0.14	1	1	71 %	83 %
118	LSI Words in Meta Description Tag Relevancy	-0.14	23	10	54 %	91 %
119	Has JSON-LD Schema Markup Relevancy	-0.14	1	1	50 %	82 %
120	Number of LinkedIn Pages Authority	-0.14	8	1	29 %	81 %
121	Exact Matches in Sentences Relevancy	-0.14	37	3	22 %	87 %
122	Variations making whole H1-H6 Tags Relevancy	-0.14	3	1	14 %	75 %
123	Has Form Technology	-0.14	1	1	44 %	78 %
124	Search Result Uses HTTPS Other	-0.14	1	1	82 %	85 %
125	Number of Social Accounts Authority	-0.14	8	2	37 %	84 %
126	Variations making whole A Tags Relevancy	-0.14	115	3	25 %	78 %
127	Variations making whole H1, H2, and H3 Tags Relevancy	-0.14	3	1	12 %	75 %
128	Variations in Strong Tags Relevancy	-0.14	289	5	23 %	78 %
129	Headings Has Question Other	-0.14	1	1	34 %	78 %
130	Variations in Footer Tags Relevancy	-0.14	6817	67	32 %	83 %
131	Uses JSON-LD name Other	-0.13	1	1	49 %	81 %
132	Has OpenGraph Image Relevancy	-0.13	1	1	52 %	69 %
133	Has Meta Viewport Technology	-0.13	1	1	79 %	80 %
134	Meta Description Length Size	-0.13	203	115	64 %	78 %
135	Number of Absolute URLs Authority	-0.13	667	274	81 %	84 %
136	Has Canonical URL Authority	-0.13	1	1	68 %	81 %
137	Number of CSS Includes Technology	-0.13	22	9	70 %	76 %
138	Exact Matches in Top 30KB Relevancy	-0.13	14	2	17 %	85 %
139	Entities in H4 Tags	-0.13	21	2	18 %	89 %
140	Number of Social Pages Authority	-0.13	25	4	58 %	81 %
141	Exact Matches in Title Tag Relevancy	-0.13	1	1	17 %	82 %
142	Number of Facebook Accounts Authority	-0.13	2	1	24 %	78 %
143	Has Terms of Service Trust	-0.13	1	1	42 %	75 %
144	Variations Making Whole Span Tags Relevancy	-0.13	4	1	17 %	85 %
145	Word Count in Meta Description Size	-0.13	47	19	64 %	81 %
146	Number of Questions In H2 Tags Size	-0.13	3	1	22 %	79 %
147	Page Size Kilobytes Size	-0.13	748	346	80 %	73 %
148	Number of H4 Tags Size	-0.13	23	3	31 %	82 %
149	Number of Instagram Pages Authority	-0.13	23	2	38 %	76 %
150	Leading Variations in H3 Tags Relevancy	-0.13	9	1	15 %	73 %
151	Number of Prices Size	-0.13	456	105	65 %	82 %
152	Number of Questions Size	-0.13	63	13	63 %	81 %
153	Number of Questions In H3 Tags Size	-0.13	4	1	17 %	79 %
154	Uses JSON-LD url Other	-0.12	1	1	44 %	78 %
155	Variations in Button Tags Relevancy	-0.12	5433	61	13 %	85 %
156	Has Meta Robots Other	-0.12	1	1	24 %	72 %
157	Variations in ID Attributes Relevancy	-0.12	1696	22	16 %	82 %
158	Uses JSON-LD ListItem Other	-0.12	1	1	30 %	73 %
159	Variations Making Whole LI Tags Relevancy	-0.12	5	1	19 %	80 %
160	Uses JSON-LD description Other	-0.12	1	1	37 %	75 %
161	Uses Schema brand Other	-0.12	1	1	6 %	42 %
162	Number Of Claimed Brands Other	-0.12	60	2	23 %	85 %
163	Uses JSON-LD GeoCoordinates Other	-0.12	1	1	12 %	42 %
164	Variations in the last 100 words Relevancy	-0.12	176	6	43 %	75 %
165	Has Schema Markup Relevancy	-0.12	1	1	60 %	73 %
166	Exact Matches in H1 Tags Relevancy	-0.12	1	1	13 %	77 %
167	Uses Schema sku Other	-0.12	1	1	6 %	22 %
168	Uses JSON-LD Organization Other	-0.12	1	1	29 %	75 %
169	Has Meta Description Relevancy	-0.12	1	1	63 %	76 %
170	Uses JSON-LD BreadcrumbList Other	-0.12	1	1	30 %	74 %
171	Uses Schema product Other	-0.12	1	1	9 %	47 %
172	Uses Schema latitude Other	-0.12	1	1	8 %	31 %
173	Uses Schema longitude Other	-0.12	1	1	8 %	31 %
174	Has Google Verify Technology	-0.12	1	1	18 %	71 %
175	Search Result URL Length Size	-0.12	93	61	95 %	60 %
176	Number of H5 Tags Size	-0.12	6	2	15 %	76 %
177	Meta Description Tag Has Entities Relevancy	-0.12	1	1	57 %	82 %
178	Uses JSON-LD latitude Other	-0.12	1	1	8 %	31 %
179	Uses JSON-LD longitude Other	-0.12	1	1	8 %	31 %
180	Uses Schema geocoordinates Other	-0.12	1	1	12 %	42 %
181	Number of Twitter Accounts Authority	-0.12	5	1	20 %	77 %
182	Exact Matches in H2 Tags Relevancy	-0.12	4	1	11 %	85 %
183	Has Contact Page Trust	-0.12	1	1	58 %	71 %
184	Variations in Article Tags Relevancy	-0.12	3771	47	20 %	74 %
185	Uses Schema organization Other	-0.12	1	1	31 %	75 %
186	Number of Email Addresses Trust	-0.12	13	4	38 %	77 %
187	Search Result Summary Length Size	-0.12	160	152	97 %	63 %
188	Variations in H4-H6 Tags Relevancy	-0.12	40	2	15 %	75 %
189	Is Article Page Other	-0.12	1	1	39 %	68 %
190	Has Meta Twitter Card Authority	-0.12	1	1	50 %	66 %
191	Uses JSON-LD sku Other	-0.12	1	1	6 %	22 %
192	Number of Nofollow Links Authority	-0.12	15	4	21 %	80 %
193	Inline JavaScript Kilobytes Size	-0.12	534	143	76 %	67 %
194	Has OpenGraph Type Relevancy	-0.12	1	1	58 %	78 %
195	Uses JSON-LD Product Other	-0.12	1	1	8 %	47 %
196	Uses Schema aggregaterating Other	-0.12	1	1	8 %	64 %
197	Uses Schema name Other	-0.12	1	1	55 %	75 %
198	Uses JSON-LD logo Other	-0.12	1	1	11 %	64 %
199	Variations in I Tags Relevancy	-0.12	568	9	17 %	75 %
200	Uses Schema logo Other	-0.12	1	1	12 %	65 %

Measures 150546 SEO Factors

148824 Built-In SEO Factors

139622 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