200 Top SEO Ranking Factors September 2026

TOP SEO Factors for 2026-09 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 Referring Domains Authority	-0.28	627	49	32 %	72 %
2	Number of Do Follow Backlinks Authority	-0.27	133206	2200	28 %	71 %
3	Number of Backlinks Authority	-0.27	134088	2283	32 %	73 %
4	Number of Unique LSI Words Used Diversity	-0.26	908	281	73 %	73 %
5	Number of No Follow Backlinks Authority	-0.25	5365	150	22 %	73 %
6	Load Time Milliseconds Performance	-0.25	21244	2138	74 %	87 %
7	Search Result Domain is .com, .net, or .org Other	-0.25	1	1	7 %	79 %
8	Search Result Domain is .com Other	-0.25	1	1	6 %	78 %
9	Number of Images Size	-0.24	81	27	61 %	88 %
10	Number of Images with ALT Text Size	-0.23	67	19	57 %	89 %
11	Number of P Tags Size	-0.23	204	41	60 %	87 %
12	Unabridged Word Count Size	-0.22	12848	1904	74 %	89 %
13	Word Count Size	-0.22	10144	1553	74 %	89 %
14	Number of H1 Tags Size	-0.22	4	1	57 %	83 %
15	Number of Top 200 Shared Factors Used Diversity	-0.22	51	36	87 %	86 %
16	Number of Heading Tags Size	-0.22	70	21	62 %	89 %
17	Number of Top 100 Shared Factors Used Diversity	-0.22	38	28	87 %	84 %
18	Clean Text Kilobytes Size	-0.22	82	13	61 %	91 %
19	Number of Top 50 Shared Factors Used Diversity	-0.22	16	11	86 %	81 %
20	Has Meta Charset Technology	-0.22	1	1	62 %	84 %
21	Number of H2 Tags Size	-0.22	21	7	57 %	85 %
22	Has JSON-LD Schema Markup Relevancy	-0.22	1	1	44 %	75 %
23	Number of HTML Tags Size	-0.21	2216	932	74 %	86 %
24	Variations in H1, H2, and H3 Tags Relevancy	-0.21	211	9	52 %	84 %
25	Average Words Per Sentence Size	-0.21	242	25	63 %	78 %
26	Number of Includes Technology	-0.2	54	23	66 %	78 %
27	Variations in H1-H6 Tags Relevancy	-0.2	267	11	53 %	85 %
28	Number of DoFollow Links Authority	-0.2	333	108	68 %	86 %
29	Number of Links Authority	-0.2	336	110	68 %	87 %
30	Number of HTTPS Links Authority	-0.2	335	110	68 %	87 %
31	Variations in P Tags Relevancy	-0.2	3443	64	53 %	88 %
32	Number of Factors Used Diversity	-0.2	396	180	88 %	78 %
33	Search Result Number of Dirs in Path Other	-0.2	4	2	66 %	78 %
34	Number of Internal Links Authority	-0.2	312	97	67 %	83 %
35	Number of Facebook Pages Authority	-0.2	10	2	44 %	87 %
36	Variations in H1 and H2 Tags Relevancy	-0.2	76	5	50 %	81 %
37	Number of Unique Variations Used Diversity	-0.2	48	13	69 %	74 %
38	Variations in Div Tags Relevancy	-0.2	31244	347	61 %	86 %
39	Variations in LI Tags Relevancy	-0.2	1981	39	52 %	85 %
40	Variations in A Tags Relevancy	-0.2	4844	58	53 %	81 %
41	Number of HTML Comments Size	-0.2	492	61	57 %	84 %
42	Entities in Sentences Relevancy	-0.19	1891	157	54 %	92 %
43	Number of H3 Tags Size	-0.19	37	9	49 %	88 %
44	Number of External Links Authority	-0.19	38	13	63 %	89 %
45	Variations in Search Result Document File Name Relevancy	-0.19	7	1	39 %	85 %
46	Number of Distinct Entities Used Diversity	-0.19	60	24	63 %	92 %
47	Number of Images without ALT Text Size	-0.19	29	8	44 %	87 %
48	Number of CSS Includes Technology	-0.19	21	8	61 %	68 %
49	Entities in the HTML Tag Relevancy	-0.19	1892	162	59 %	92 %
50	Variations in H2 Tags Relevancy	-0.19	71	4	43 %	80 %
51	Number of Instagram Pages Authority	-0.19	13	2	34 %	84 %
52	Variations in H1 Tags Relevancy	-0.19	11	1	44 %	78 %
53	Search Result Host Length Size	-0.19	22	16	73 %	75 %
54	Has Form Technology	-0.19	1	1	36 %	71 %
55	Number of DoFollow External Links Authority	-0.19	36	12	62 %	90 %
56	Variations in Body Tags Relevancy	-0.18	97091	798	69 %	82 %
57	Search Result Domain Length Size	-0.18	22	16	73 %	75 %
58	Variation Count in Top 30KB Relevancy	-0.18	6580	79	56 %	76 %
59	Variations in ALT Attributes Relevancy	-0.18	151	8	38 %	82 %
60	Number of LinkedIn Pages Authority	-0.18	4	1	25 %	79 %
61	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.18	11	2	37 %	80 %
62	LSI Words in Sentences Relevancy	-0.18	3764	631	51 %	94 %
63	Entities in H2 Tags	-0.18	46	7	42 %	93 %
64	Variations in HTML Tags Relevancy	-0.18	97091	783	68 %	84 %
65	Flesch Kincaid Reading Grade Level Other	-0.18	6	1	84 %	87 %
66	Uses JSON-LD name Other	-0.18	1	1	46 %	73 %
67	Leading Variations in H1-H6 Tags Relevancy	-0.18	12	2	39 %	83 %
68	Variations in Span Tags Relevancy	-0.18	729	17	42 %	85 %
69	Search Result Uses HTTPS Other	-0.18	1	1	71 %	71 %
70	Number of Forms Technology	-0.18	6	2	38 %	77 %
71	Number of Social Pages Authority	-0.18	15	5	50 %	84 %
72	Variations in Sentences Relevancy	-0.18	3407	81	62 %	83 %
73	Percentage of DoFollow External Links Authority	-0.18	38	13	61 %	76 %
74	Variations in Search Result URL Path Relevancy	-0.18	7	2	41 %	83 %
75	Number of Questions In Headings Size	-0.18	9	3	33 %	84 %
76	Variations in A Tag HREF Attributes Relevancy	-0.17	2213	60	49 %	83 %
77	Term Frequency Relevancy	-0.17	6	3	67 %	76 %
78	Variations in H3 Tags Relevancy	-0.17	135	5	35 %	84 %
79	Number of Facebook Accounts Authority	-0.17	3	1	20 %	78 %
80	Number Of JSON-LD Types Relevancy	-0.17	77	17	47 %	83 %
81	Page Size Kilobytes Size	-0.17	788	293	73 %	58 %
82	Number of Social Accounts Authority	-0.17	5	2	31 %	82 %
83	Variations in Distinct A Tag HREF Attributes Relevancy	-0.17	1343	37	49 %	83 %
84	Number of Sentences Size	-0.17	541	141	72 %	84 %
85	Entities in H1 Tags	-0.17	5	2	43 %	89 %
86	Percentage of DoFollow Links Authority	-0.17	99	79	68 %	74 %
87	Headings Has Question Other	-0.17	1	1	33 %	79 %
88	Entities in H3 Tags	-0.17	63	7	36 %	93 %
89	Variations in Main Tags Relevancy	-0.17	15167	178	31 %	84 %
90	Percentage of DoFollow Internal Links Authority	-0.17	91	65	66 %	69 %
91	Has Meta Robots Other	-0.17	1	1	23 %	73 %
92	Variations in Search Result URL Relevancy	-0.16	13	2	50 %	77 %
93	Uses JSON-LD url Other	-0.16	1	1	41 %	72 %
94	Has Entities in H2 Tags Relevancy	-0.16	1	1	43 %	89 %
95	Inline CSS Kilobytes Size	-0.16	154	55	57 %	83 %
96	Has Meta Viewport Technology	-0.16	1	1	69 %	71 %
97	Search Result Summary Length Size	-0.16	216	149	86 %	67 %
98	Number of Questions In H3 Tags Size	-0.16	5	2	18 %	79 %
99	Entities in Title Tag Relevancy	-0.16	10	3	54 %	92 %
100	Variations in Nav Tags Relevancy	-0.16	9938	84	40 %	80 %
101	Is Home Page Other	-0.16	1	1	13 %	56 %
102	Number of Absolute URLs Authority	-0.16	546	233	72 %	69 %
103	Inline JavaScript Kilobytes Size	-0.16	557	117	68 %	51 %
104	Variations in Absolute URLs Relevancy	-0.16	6009	111	52 %	82 %
105	Title Length Size	-0.16	129	50	71 %	58 %
106	LSI Words in H2 Tags Relevancy	-0.16	69	17	42 %	88 %
107	Variations in Meta Description Relevancy	-0.16	44	2	50 %	70 %
108	Variations in First 100 Words Relevancy	-0.16	187	9	56 %	77 %
109	Has Privacy Policy Trust	-0.16	1	1	44 %	62 %
110	Variation Density in Top 30KB Relevancy	-0.16	298	6	56 %	67 %
111	Has Contact Page Trust	-0.16	1	1	48 %	59 %
112	Has Entities in H1 Tags Relevancy	-0.16	1	1	43 %	87 %
113	Number of JavaScript Includes Technology	-0.16	40	16	68 %	79 %
114	Variations in the Title Tag Relevancy	-0.16	10	2	54 %	68 %
115	Has Apple Touch Icon Technology	-0.16	1	1	42 %	76 %
116	Has US Phone Number Trust	-0.16	1	1	30 %	73 %
117	Variations in Search Result Link Text Relevancy	-0.16	10	2	75 %	71 %
118	Is Article Page Other	-0.16	1	1	35 %	67 %
119	Variations in Footer Tags Relevancy	-0.16	4986	45	35 %	76 %
120	Variations in OpenGraph Title Relevancy	-0.16	7	2	47 %	60 %
121	Title Word Count Size	-0.16	17	8	72 %	61 %
122	Variations in Section Tags Relevancy	-0.15	1231	35	34 %	86 %
123	Uses JSON-LD description Other	-0.15	1	1	37 %	68 %
124	Leading Variations in H2 Tags Relevancy	-0.15	4	1	22 %	78 %
125	Variations in Search Result Display URL Relevancy	-0.15	10	2	75 %	71 %
126	Leading Variations in H1 Tags Relevancy	-0.15	1	1	22 %	76 %
127	Number of US Phone Numbers Trust	-0.15	108	8	31 %	82 %
128	Exact Matches in the HTML Tag Relevancy	-0.15	324	11	28 %	81 %
129	Variations in the Canonical URL Relevancy	-0.15	39	2	43 %	75 %
130	Clean Keyword Density in the HTML Tag Relevancy	-0.15	204	6	58 %	64 %
131	Number Of Claimed Brands Other	-0.15	38	3	22 %	76 %
132	Variations in OpenGraph Description Relevancy	-0.15	24	2	46 %	64 %
133	Number of Twitter Accounts Authority	-0.15	2	1	14 %	81 %
134	LSI Words in H3 Tags Relevancy	-0.15	72	19	37 %	91 %
135	Uses Schema organization Other	-0.15	1	1	28 %	65 %
136	Number of Email Addresses Trust	-0.15	19	4	37 %	75 %
137	Number of Prices Size	-0.15	484	115	60 %	77 %
138	Has Terms of Service Trust	-0.15	1	1	31 %	56 %
139	Leading Variations in Title Tag Relevancy	-0.15	1	1	27 %	75 %
140	Has Entities in H3 Tags Relevancy	-0.15	1	1	36 %	87 %
141	Exact Matches in H1-H6 Tags Relevancy	-0.15	8	1	17 %	80 %
142	Variations in Strong Tags Relevancy	-0.15	43	3	25 %	81 %
143	Number of Questions In H2 Tags Size	-0.15	4	1	21 %	82 %
144	Has Schema Markup Relevancy	-0.15	1	1	55 %	56 %
145	Variations in Script Tags Relevancy	-0.15	29554	247	58 %	73 %
146	Number of Nofollow Links Authority	-0.15	20	3	17 %	82 %
147	Number of Questions Size	-0.15	55	14	59 %	72 %
148	Number of H4 Tags Size	-0.15	12	3	26 %	82 %
149	LSI Words in H1 Tags Relevancy	-0.15	11	4	42 %	88 %
150	Exact Matches in Top 30KB Relevancy	-0.14	8	2	17 %	76 %
151	Uses Schema name Other	-0.14	1	1	52 %	52 %
152	Uses JSON-LD Organization Other	-0.14	1	1	28 %	68 %
153	Number of NoFollow External Links Authority	-0.14	7	2	13 %	82 %
154	Word Count in Meta Description Size	-0.14	54	19	60 %	61 %
155	Uses JSON-LD datePublished Other	-0.14	1	1	27 %	71 %
156	Uses Schema datemodified Other	-0.14	1	1	26 %	68 %
157	Variations Making Whole Span Tags Relevancy	-0.14	6	1	19 %	77 %
158	Has FavIcon Technology	-0.14	1	1	66 %	60 %
159	Has OpenGraph Type Relevancy	-0.14	1	1	54 %	57 %
160	Has OpenGraph Image Relevancy	-0.14	1	1	46 %	54 %
161	Uses JSON-LD ImageObject Other	-0.14	1	1	26 %	66 %
162	Meta Description Length Size	-0.14	394	115	60 %	61 %
163	Entities in Meta Description Tag Relevancy	-0.14	17	3	47 %	87 %
164	Has Meta Description Relevancy	-0.14	1	1	58 %	55 %
165	Uses Schema url Other	-0.14	1	1	49 %	52 %
166	Uses JSON-LD BreadcrumbList Other	-0.14	1	1	30 %	65 %
167	Uses JSON-LD ListItem Other	-0.14	1	1	31 %	66 %
168	Has Canonical URL Authority	-0.14	1	1	62 %	59 %
169	Is OpenGraph Type Article Technology	-0.14	1	1	25 %	60 %
170	Uses JSON-LD dateModified Other	-0.14	1	1	26 %	69 %
171	TF/IDF Relevancy	-0.14	1	1	52 %	74 %
172	Percentage of NoFollow Links Authority	-0.14	7	2	16 %	79 %
173	Is Store Page Other	-0.14	1	1	34 %	71 %
174	Uses Schema webpage Other	-0.14	1	1	28 %	68 %
175	Variations Making Whole LI Tags Relevancy	-0.14	7	1	23 %	78 %
176	Uses JSON-LD WebPage Other	-0.14	1	1	27 %	66 %
177	Number of Meta Generator Tags Technology	-0.14	2	1	28 %	68 %
178	Search Result Has Unmodified Page Title Other	-0.14	1	1	37 %	56 %
179	Uses Microdata ratingCount Other	-0.13	1	1	2 %	12 %
180	Search Result URL Length Size	-0.13	110	66	86 %	42 %
181	Variations in Article Tags Relevancy	-0.13	356	21	21 %	77 %
182	Variations in I Tags Relevancy	-0.13	138	5	17 %	82 %
183	Exact Matches in Title Tag Relevancy	-0.13	1	1	14 %	78 %
184	Has Email Trust	-0.13	1	1	36 %	67 %
185	Uses Microdata AggregateRating Other	-0.13	1	1	2 %	16 %
186	Percentage of NoFollow External Links Authority	-0.13	4	1	11 %	80 %
187	Has Google Verify Technology	-0.13	1	1	15 %	73 %
188	LSI Words in Title Tag Relevancy	-0.13	12	5	51 %	82 %
189	Variations making whole A Tags Relevancy	-0.13	22	2	26 %	78 %
190	Uses JSON-LD SearchAction Other	-0.13	1	1	18 %	64 %
191	Uses Schema searchaction Other	-0.13	1	1	18 %	64 %
192	Exact Matches in Sentences Relevancy	-0.13	209	4	20 %	79 %
193	Entities in H4 Tags	-0.13	10	2	15 %	90 %
194	Has RSS Link Authority	-0.13	1	1	22 %	60 %
195	Uses Schema website Other	-0.13	1	1	29 %	65 %
196	Uses Schema telephone Other	-0.13	1	1	21 %	61 %
197	Uses Schema headline Other	-0.13	1	1	15 %	59 %
198	Variations in Button Tags Relevancy	-0.13	1596	13	13 %	78 %
199	Leading Variations in H3 Tags Relevancy	-0.13	8	1	18 %	81 %
200	Variations in H4-H6 Tags Relevancy	-0.13	57	2	16 %	82 %

Measures 154506 SEO Factors

152784 Built-In SEO Factors

143557 On-page SEO Factors

9227 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 2026-09 previous